Which is the correct label of the parallel lines?

What signals you that factoring by grouping is the best method to use when factoring a problem?

The area of square garden is 300m squared. how long is the diagonal?

Answer asap. you begin with 1/2 scoop of ice cream. since you're hungry, you ask the vendor for 2/7 more scoops of ice cream. then, you eat 5/8 scoops. how many scoops of ice cream are left on your cone? i will mark brainliest for first correct answer.